The Swans closed the gap on third place with victory over Peterborough at the Liberty Stadium.
David Cotterill converted from the spot-kick with just 19 minutes played to score the only goal of the game after he was grounded by Charlie Lee.
The scoreline could have been higher only for Posh 'keeper and captain Joe Lewis to make a number of fantastic saves, especially during the second-half.
Despite clinching all three points there was disappointment of losing Darren Pratley and the returning Ferrie Bodde to injury during the first-half.
Swans:Dorus de Vries; Angel Rangel, Ashley Williams, Alan Tate(C), Jazz Richards; Leon Britton, Ferrie Bodde (Lee Trundle, 33'), Darren Pratley (Mark Gower, 24'), David Cotterill, Nathan Dyer; Shefki Kuqi (Craig Beattie, 87').
Not Used:David Cornell (GK), Tom Butler, Besian Idrizaj, Guillem Bauza.
Posh: Joe Lewis (C), Scott Griffiths (Kerrea Gilbert, 53'), Craig Morgan, Charlie Lee (Nathan Koranteng, 46'), Exodus Geohaghon (Gabriel Zakuani, 69'), Chris Whelpdale, Lee Frecklington, Jake Livermore, Tommy Rowe, Liam Dickinson, Reuben Reid.
Not Used: James McKeown (GK), Sergio Torres, Billy Crook, Danny Mills.
Referee: G Ward (Surrey)
Peterborough may have been the division's bottom side coming into this game but they certainly showed early signs of promise as they passed the ball around confidently.
The Posh even unleashed secret weapon Exodus Geohaghon, the exotically named defender renowned for his long throws, with just two minutes on the clock and his delivery into the area got the better of goalkeeper and defence - fortunately it also missed by the visiting players as it bounced out for a goalkick.
Ferrie Bodde was making his long awaited return and moments after Peterborough's aerial attempt the Dutchman played his part in the Swans' first build-up to goal.
Midfield partner Darren Pratley did well to fend off the challenge of three visiting players just outside the area before finding Bodde on the right, just one glance and the ball was sprayed across the area to Shefki Kuqi who chested down and fired low at goal, the fingertips of 'keeper Joe Lewis the difference between an opening goal and the corner that was given.
Bodde's seldom seen any action in the last 18 months courtesy of the two knee injuries which have hampered the former Den Haag player, but he certainly hasn't lost his touch - his 15th minute effort from distance whistling inches wide of the target with Lewis well beaten the moment the ball left Bodde's boot.
The home side certainly didn't have to wait long to break the deadlock, however, as David Cotterill was bundled down inside the area under the challenge of Charlie Lee, leaving the referee with no option but to award a penalty.
Wales international Cotterill placed the ball down on the spot, Lewis guessed the right way and the winger was on target to take his tally to four this season on 19 minutes.
Minutes before the opening goal the Swans suffered a massive blow when Darren Pratley was forced off injured - the midfielder limped off for treatment on the side of the pitch but, despite walking back around to the West Stand side of the pitch, he was withdrawn as a precaution and replaced by Mark Gower.
The Swans were certainly in control of this affair as it approached the half-hour mark and they could have increased their lead on two separate occasions through Kuqi and Dyer, who both fired over, while Reuben Reid curled past the post for Peterborough.
But further misery was heaped on Paulo's side on 28 minutes as Bodde went down near the touch line under no challenge; he was able to walk off on his own, but when it was decided that he wouldn't be returning Lee Trundle was introduced in his place.
The Swans continued to dominate but chances were few and far between until an excellenct chance was handed to the home side on a plate on the stroke of half-time.
Kuqi capitalised on a poor, weak back pass from Geohaghon inside his own area only for the Finnish strike to be denied by the legs of Lewis, while Nathan Dyer's follow-up was also blocked on the line by a defender.
Goalscorer Cotterill curled another Swansea effort inches off target moments later while substitute Trundle's 20-yard effort deep into stoppage-time was safely dealt with by the goalkeeper.
Half-Time: Swans 1 Peterborough 0
Posh were able to call on Geohaghon's long throw again at the very beginning of the second-half this time, and it was used to greater effect - the ball landing right in the heart of the Swansea area where Tommy Rowe was able to direct a header goalwards but, fortunately, it landed the wrong side of the post.
Swansea's response was a low strike from Gower which was easily dealt with, while Shefki Kuqi flicked a 12-yard effort over the top of goal from Nathan Dyer's right-sided cross. It was Lee Trundle that sent the winger on his way and he had two chances of his own in quick succession, the first a curled strike which ended up in the South Stand while his second flew past Joe Lewis' right-sided post.
Peterborough weren't backing down in this fixture and just after the hour they came agonisingly close to levelling as Lee Frecklington directed a close-range header from Nathan Koranteng's cross wide of goal.
But the Swans went straight back down the other end where substitutes Lee Trundle and Mark Gower combined to right of goal which ended with the former seeing his goalbound effort deflect off the back of Craig Morgan.
Jim Gannon's side continued to stride forward but Dorus de Vries was still left with little work to do in the Swansea goal, while Lewis in the other penalty area remained the busiest of the two shot stoppers as he again kept his side in this game by denying Trundle from just outside the box. He was also on song to deny Kuqi from close-range 20 minutes from the end.
The Posh goalkeeper came to his side's rescue again 12 minutes from the end with two excellenct back-to-back saves, the first from Dyer after he was played in on goal by Alan Tate while his greatest stop of the afternoon came 10 seconds later to deny Trundle's curler with an outstretched hand.
Swansea held their nerve but were handed a few scares in injury-time - the first a low Lee Frecklington cross which cleared from inside the six-yard area by Alan Tate, the resulting corner found its way to Frecklington on the edge of the box but his strike sailed high and wide.